Patent GB-948847-A (GB)
Title: Improvements in and relating to textile machines
Inventor: MACKIE JOHN KAY PRINGLE
IPC: D01H1/10
Filed: 1961-06-29
Abstract: 948,847. Inflow and outflow two-for-one twisting-machines, JAMES MACKIE & SONS Ltd. June 25, 1962 [June 29,1961], No. 23589/61. Heading D1D. [Also in Division F2] In a two-for-one inflow or outflow twisting- machine where the yarn is ballooned around a bracket carrying take-up or let-off means by a flyer, either the restraint holding the take-up or let-off means against rotation with the flyer, or a drive to the take-up or let-off means, is transmitted from outside the balloon by a train comprising a pair of coaxial sunwheels one within and one outside the balloon, and a pair of coaxial planets carried by the flyer and connected to rotate in unison, each planet being positioned opposite to and associated with one of the sunwheels and connected to it by an internally toothed belt. Inflow and outflow twisters are described, the former embodying the drive and the latter the restraint; these latter are individually of the form shown in Fig. 3 which shows an inflow twister embodying both features. The drive is provided by a driven sun gear 25 beneath the flyer connected by a toothed belt 33 to the lower of two interconnected planets 29, 31 carried by a rotating disc-flyer 5, the upper planet 31 being connected by a toothed belt 35 to a sun 27 which is connected to the take up means, i.e. the traverse and the package spindle &c. The restraint is provided by a fixed sun 11 connected by a belt 21 to the lower of two equal planets 15, 13 the upper one being connected to a sun 9 equal in diameter to sun 11 and connected to a bracket carrying the package 3. In the inflow twister of Fig. 5, both the restraint and the drive are provided by a fixed sun 44 which replaces the two suns 11,25 of Fig. 3. Sun 44 is connected by a toothed belt to the lower of three planets 48, 46, 60 carried by the flyer 50, the upper planets being above the flyer and respectively connected by toothed belts to suns 42,64. The suns 44, and 42 and the planets 48,46 are of equal diameter so that sun 42 remains stationary as the flyer rotates, but sun 64 is of larger diameter than sun 44 and planet 60 is of smaller diameter than planet 48, so that sun 64 is driven as the flyer rotates. Stationary sun 42 is rotatably mounted in a bracket 40 carried by the flyer and is integral with an inlet tube 14 supporting a bracket 38 carrying nip rolls 16 and a traversescroll 22, a package 18 on a spindle 4, and a shaft 68 with gears 70, 72 driving the rolls 16 and the scroll 22. This shaft is driven from a gear 66 integral with driven sun 64 and the package spindle is driven from the scroll by chain and sprocket gearing 78. The flyer-shaft 28 is driven by a gear 26. In operation, yarns drawn from packages 2 travel to the package via a guide 6 feed-rollers 8, an eye 9, an eye 10 on the flyer, and tube 10 and nip-rollers 16..The rollers 8 can be dispensed with and the take-up drive may be such and its speed varied as in Specification 948,845 while the drive and the restraining means can be used on the machine forming the subject of Specification 948,846. The planets associated with the sun wheels may be provided by separate portions of a single extended planet wheel and the planet associated with the sunwheel inside the balloon may lie inside or outside the balloon-path.